Aim:
- To match and retrieve a fingerprint template from a database
- To save and retrieve a time log from the database.
- To develop a login system using fingerprint template.
Activities Discussion:
As we
already know, everyone have their own fingerprint. Fingerprint has it unique
characteristic because there is no people have a same fingerprint template. On
the duration, I try to use a fingerprint template as a password. I have to
identify what type of data for a fingerprint template that I must save in SQL
database. Basically, for my project, I store
the fingerprint along with employee data profile. I made a little bit
modification from a previous registration. As shown in figure 1 and 2, it is
the registration form to register or remove an employee. This registration only
can access by authorized admin.
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Figure 1
For the fingerprint image, Digital Persona provides a SDK that allow me to integrated fingerprint biometric into my VB.net application. This tool enables me to perform basic fingerprint operations such as capturing a fingerprint from scanner, extracting the distinctive features from the captured fingerprint sample and storing the resulting data in a template. At the beginning to perform this basic operation, there is several error displays on my application shown in the figure 3 below.
|
 |
| Figure 3 |
I had
been stuck in this situation for quite long period of time. After searching this
kind of error on stackflow.com, I managed to solve it. It is because my
application must include the several function of the device in the reference.
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| Figure 4 |
By
understand the SQL server works, the constructing of time log database have
been easy. In figure 6, it shown the access system for employee after the
fingerprint granted (figure 5); fingerprint template is match with the
employee database.
 |
| Figure 5 |
Basically, on the access system, I just designed a simple layout and also time access.By retrieve the employee data from the employee’s database, it will display all the information on the application window.
The
time access is store in another database that I created which the RegLog
database is shown in the figure below. So, every time employee enters the
access system, it will record the time entry and save it on this database.
Conclusion:
- http://msdn.microsoft.com/en-us/library/ms187752.aspx- this is the link that I use to study about
data type in SQL server.
- It
is important to understand SQL server principle and functionality first
when constructing a SQL database.In other word, you must
understand how it works before you build something.
- Digital
Persona SDK provides me a helpful hand for developing this application by
interfacing the fingerprint device with VB.net programming.
- At
the end of week 12, all objective have been successful achieved I managed
to run the application smoothly after solving a several error. I also
modify the system according to my supervisor advice.
OK
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